--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/phonebookui/Phonebook2/UIControls/src/TPbk2FindTextUtil.cpp	Tue Feb 02 10:12:17 2010 +0200
@@ -0,0 +1,82 @@
+/*
+* Copyright (c) 2007-2007 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:  Find text box util
+*
+*/
+
+
+
+// INCLUDE FILES
+#include "TPbk2FindTextUtil.h"
+#include <e32std.h>
+#include <aknsfld.h>    // CAknSearchField
+
+#ifdef _DEBUG
+enum TPanicCode
+    {
+    EPanicLogic_FindTextBufferL
+    };
+
+void Panic(TPanicCode aReason)
+    {
+    _LIT(KPanicText, "TPbk2FindTextUtil");
+    User::Panic(KPanicText, aReason);
+    }
+#endif // _DEBUG
+
+// ============================ MEMBER FUNCTIONS ===============================
+
+void TPbk2FindTextUtil::EnsureFindTextBufSizeL( 
+        const CAknSearchField& aFindBox,
+        HBufC** aFindTextBuf )
+    {
+    // Initial minimum size for the find text buffer
+    const TInt KInitialBufSize = 8;
+
+    const TInt findBoxTextLength = aFindBox.TextLength();
+    if (findBoxTextLength > 0)
+        {
+        TInt bufCapacity = 0;
+        if ( *aFindTextBuf )
+            {
+            bufCapacity = (*aFindTextBuf)->Des().MaxLength();
+            }
+        if (bufCapacity < findBoxTextLength)
+            {
+            // Allocate a new buffer of at least KInitialBufSize
+            // characters or twice as large as the previous one
+            const TInt KDoubleSize = 2;
+            const TInt newBufSize = Max(Max(KInitialBufSize,
+                KDoubleSize*bufCapacity), findBoxTextLength);
+            HBufC* newBuf = HBufC::NewL(newBufSize);
+            delete *aFindTextBuf;
+            *aFindTextBuf = newBuf;
+            }
+        TPtr bufPtr = (*aFindTextBuf)->Des();
+        __ASSERT_DEBUG
+            (bufPtr.MaxLength()>=KInitialBufSize &&
+            bufPtr.MaxLength()>=findBoxTextLength,
+            Panic(EPanicLogic_FindTextBufferL));
+        }
+        
+    // caller expect buffer to be found
+    if ( !(*aFindTextBuf ) )
+        {
+        *aFindTextBuf = HBufC::NewL( KInitialBufSize );
+        }
+    
+    }
+
+
+//  End of File